Benjamin Netanyahu said the pilot who allegedly attacked the other pilot on the Flydubai flight had been arrested and was being questioned by Saudi authorities, and that everyone aboard was safe. [S1]

Verification result: unverified insufficient evidence, because S1 is the only supplied report stating that an arrest occurred, while the other reports say the incident remained under investigation or was not independently established. [S1][S2][S3][S4]

The strongest evidence for the central claim is The Guardian's account of Netanyahu's video statement; no supplied Saudi authority statement directly confirms the arrest or questioning. [S1]

After an onboard incident, Flight FZ 1073 landed safely at Tabuk Airport at about 9:45 a.m. local time. [S3][S4]

The Saudi airport operator said the captain and first officer were injured and taken to a hospital after landing. [S3][S4]

Netanyahu and passengers alleged that one pilot stabbed the other and tried to crash the aircraft, but Flydubai described an altercation and said the reasons and motives remained under formal investigation. [S1][S2]

Tracking reports agree on a steep descent but give different summaries: CBS cited more than 17,000 feet in two minutes, NBC cited 14,125 feet in 29 seconds, and The Sun Nigeria cited nearly 34,000 feet to below 17,000 feet in about a minute. [S2][S3][S4]